[uwhdr] Teach it how to do the proper IO
[uwhdr] Teach it how to do the proper IO

jroelofs/uwh-display,jroelofs/uwh-display,Navisjon/uwh-display,Navisjon/uwh-display,jroelofs/uwh-display,Navisjon/uwh-display,Navisjon/uwh-display